The traffic was busy on our way to the train station, _____ we caught the train on time at last.
---Peter knows many people here. ---_________________
This toy Mickey Mouse _______be Amy's. She's the only kid at the picnic.
Li Lei often takes care of the old woman after school.
The kid isn't old enough to go to school.
When a child realizes he should stand on his own feet, he has grown up.